Chapra vs Kishanganj
Side-by-side air quality comparison between Chapra and Kishanganj.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Chapra | Kishanganj |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 99.40 |
| PM10(µg/m³) | 115.50 | 102.00 |
| NO₂(µg/m³) | 53.70 | 19.70 |
| SO₂(µg/m³) | 13.70 | 12.20 |
| O₃(µg/m³) | 10.00 | 59.00 |
| CO(µg/m³) | 858.00 | 768.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Kishanganj averaged 144 — a 5-point (3%) gap, with Chapra the more polluted and Kishanganj the cleaner of the two. On 833 days when both cities reported, Kishanganj was cleaner on 613 of them; the average daily gap was 67 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Kishanganj was 0.2% Severe and 37.099999999999994% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Kishanganj 23 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Kishanganj has improved by 136 AQI points (48.6%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Kishanganj hit AQI 417 at SDM Office Khagra (BSPCB) on 2022-02-01.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Kishanganj spans 1 stations with a 0-point spread (min 156, max 156).
Verdict
🏆 Chapra has better air quality with an AQI of 231 compared to Kishanganj's 232.